[project @ 2001-01-05 15:24:28 by sewardj]

[ghc-hetmet.git] / ghc / interpreter / nHandle.c

diff --git a/ghc/interpreter/nHandle.c b/ghc/interpreter/nHandle.c
index 5194ad6..ecc5f8f 100644 (file)
--- a/ghc/interpreter/nHandle.c
+++ b/ghc/interpreter/nHandle.c
@@ -9,6 +9,83 @@
 #include <malloc.h>
 #include <stdlib.h>
 #include <ctype.h>
+#ifndef _WIN32
+#include <sys/times.h>
+#include <sys/resource.h>
+#include <sys/stat.h>
+#include <time.h>
+#endif
+#include <unistd.h>
+
+#ifndef _WIN32
+double nh_getCPUtime ( void )
+{
+   double usertime;
+   struct rusage usage;
+   getrusage ( RUSAGE_SELF, &usage );
+   usertime = (double)usage.ru_utime.tv_sec +
+              (double)usage.ru_utime.tv_usec / 1000000.0;
+   return usertime;
+}
+
+double nh_getCPUprec ( void )
+{
+   /* or perhaps CLOCKS_PER_SEC ? */
+   return 1.0 / (double)(CLK_TCK);
+}
+#else
+double nh_getCPUtime ( void )
+{
+   return 1;
+}
+
+double nh_getCPUprec ( void )
+{
+   return 1;
+}
+#endif
+
+int nh_getPID ( void )
+{
+#ifndef _WIN32
+   return (int) getpid();
+#else
+   return (int) 0;
+#endif
+}
+
+void nh_exitwith ( int code )
+{
+   exit(code);
+}
+
+int nh_system ( char* cmd )
+{
+   return system ( cmd );
+}
+
+int nh_iseof ( FILE* f )
+{
+   int c;
+   errno = 0;
+   c = fgetc ( f );
+   if (c == EOF) return 1;
+   ungetc ( c, f );
+   return 0;
+}
+
+int nh_filesize ( FILE* f )
+{
+#ifndef _WIN32
+   struct stat buf;
+   errno = 0;
+   fstat ( fileno(f), &buf );
+   return buf.st_size;
+#else
+   errno = EPERM;
+   return 0;
+#endif
+}
 
 int nh_stdin ( void )
 {
@@ -65,7 +142,9 @@ int nh_read ( FILE* f )
 
 int nh_errno ( void )
 {
-   return errno;
+   int t = errno;
+   errno = 0;
+   return t;
 }
 
 int nh_malloc ( int n )
@@ -94,23 +173,3 @@ int nh_getenv ( int p )
    return (int)getenv ( (const char *)p );
 }
 
-#if 0
-int prog_argc;
-char** prog_argv;
-
-int nh_init_args ( int  argc, char *argv[] ) 
-{
-  prog_argc = argc;
-  prog_argv = argv;
-}
-
-int nh_argc ( void )
-{
-  return prog_argc;
-}
-
-int nh_argvb ( int argno, int offset )
-{
-  return prog_argv[argno][offset];
-}
-#endif